US 2021/0240112 A1Published application

Fixing device

AssigneeBrother Kogyo Kabushiki Kaisha

InventorKazuna TAGUCHI

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Abstract

A fixing device includes a first fixing member, a second fixing member, a heater, a temperature sensor, a sensor holder, and a first frame. The temperature sensor detects a temperature of the first fixing member or the second fixing member. The sensor holder is configured to hold the temperature sensor and is fixed on the first frame. The first frame is made of metal and includes a first bend, a second bend, a third bend, a first wall, a second wall, a third wall, and a fourth wall. The second wall is connected to the first wall via the first bend. The third wall is connected to the second wall via the second bend. The fourth wall is connected to the third wall via the third bend. The first wall and the second wall form an acute angle.

Claims25

Dependent claims

A fixing device comprising:

a first fixing member including a roller;
a second fixing member configured to form a nip in combination with the first fixing member;
a heater that heats the first fixing member or the second fixing member;
a temperature sensor that detects a temperature of the first fixing member or the second fixing member;
a sensor holder configured to hold the temperature sensor;
and
a first frame on which the sensor holder is fixed, the first frame being made of metal,
wherein the first frame comprises:
a first bend, a second bend, and a third bend each of which has a bent shape in a cross section orthogonal to an axial direction of the roller;
a first wall;
a second wall connected to the first wall via the first bend;
a third wall connected to the second wall via the second bend;
and
a fourth wall connected to the third wall via the third bend, and
wherein the first wall and the second wall form an acute angle.

12 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/166,464Filed 3 Feb 2021
Priority: JP 2020-0167184 Feb 2020
Published: 5 Aug 2021
Term ends: Not estimatedThe source records don’t support an estimate.

Classification9 codes

G03G 15/2017
Using contact heat: structural details of the fixing unit in general, e.g. cooling means, heat shielding means
G03G 15/2053
Using contact heat: structural details of heat elements, e.g. structure of roller or belt, eddy current, induction heating
G03G 21/1685
Means for handling parts of the apparatus in the apparatus: for the fixing unit
G03G 15/2039
Using contact heat: with means for controlling the fixing temperature

Family

US 11,281,131 B2Related patent
US 2021/0240112 A1This patent

From the US filing history. Foreign family members aren’t listed.

Timeline

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